ObservableScanTests.java

/**
 * Copyright (c) 2016-present, RxJava Contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
 * the License for the specific language governing permissions and limitations under the License.
 */

package io.reactivex.observable;

import java.util.HashMap;

import org.junit.Test;

import io.reactivex.functions.*;
import io.reactivex.observable.ObservableEventStream.Event;

public class ObservableScanTests {

    @Test
    public void testUnsubscribeScan() throws Exception {

        ObservableEventStream.getEventStream("HTTP-ClusterB", 20)
        .scan(new HashMap<String, String>(), new BiFunction<HashMap<String, String>, Event, HashMap<String, String>>() {
            @Override
            public HashMap<String, String> apply(HashMap<String, String> accum, Event perInstanceEvent) {
                accum.put("instance", perInstanceEvent.instanceId);
                return accum;
            }
        })
        .take(10)
        .blockingForEach(new Consumer<HashMap<String, String>>() {
            @Override
            public void accept(HashMap<String, String> pv) {
                System.out.println(pv);
            }
        });

        Thread.sleep(200); // make sure the event streams receive their interrupt
    }
}